Waterloo International station was the London terminus of the Eurostar international rail service from its opening on 14 November 1994 until 13 November 2007. It stands on the western side of Waterloo railway station, London. It was managed and branded separately from the mainline station. Designed by the architectural firm Grimshaw Architects over five years, it cost £135 million and was completed in May 1993, in time for the scheduled completion of the Channel Tunnel. Construction of the Tunnel was delayed however, and the station did not open until November 1994, when it won the Royal Institute of British Architects' Building of the Year award. Waterloo International has five platforms, numbered 20 to 24, one (20) taken from the mainline station, and four new ones, all covered by a new